package controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import pojo.User;
import service.UserService;
import util.Page;

import java.util.List;

@Controller
@RequestMapping("/user")

// /user/list
public class UserController {

    @Autowired
    private UserService userService;

    @RequestMapping("/login")
    public String login(User user) {
       boolean flag = userService.login(user);
       if(flag) {
           return "index";
       } else {
           return "login";
       }
    }
    @RequestMapping("/toregist")
    public String toregist() {
        return "regist";
    }
    @RequestMapping("/checkUserNameUnique")
    @ResponseBody
    public String checkUserNameUnique(@RequestParam("name") String name){
        int count=userService.findUserByUserName(name);
        if(count>0){
            return "true";
        }else{
            return "false";
        }
    }
    @RequestMapping("/list{currentPage}")
    public String findAll(User user,@PathVariable("currentPage") int currentPage,Model model) {
       Page page = new Page();
       page.setCurrentPage(currentPage);

        int totalCount = userService.count(user);
        page.setTotalCount(totalCount);
        page.setTotalPage();
        //计算偏移量
        int offset =currentPage-1*page.getPageSize();


        List<User> list = userService.findAll(user,offset,page.getPageSize());
        model.addAttribute("page",page);
        model.addAttribute("currentPage",user);
        model.addAttribute("user",user);
        return "user/list";
    }

    @RequestMapping("/toadd")
    public String toAdd() {
        return "user/add";
    }
    @RequestMapping("/addSave")
    public String addUser(User user) {
        int result = userService.addUser(user);
        if(result>0){
            return "redirect:/user/list";
        }else {
            return "error";
        }
    }

    @RequestMapping("/delete")
    public String deleteUser(@PathVariable("id") int id) {
        int result = userService.deleteUser(id);
        if(result>0){
            return "redirect:/user/list";
        } else {
            return "error";
        }
    }

    @RequestMapping("/updateSave")
    public String updateUser(User user) {
        int result =  userService.updateUser(user);
        if(result>0){
            return "redirect:/user/list";
        } else {
            return "error";
        }
    }

    @RequestMapping("/toupdate")
    public String toUpdate(@PathVariable("id") int id, Model model) {
        User user = userService.findUserById(id);
        model.addAttribute("user",user);
        return "user/update";
    }


}
